The following document summarises current progress on identifying data sources to inform the job search behaviour in our labour market ABM.
Goals:
Identify parameters relevant to agent search behaviour in the ABM.
Assess data quality for deriving empirical estimates of these parameters.
We have narrowed the list of behavioural adjustments to the
following:
- Duration-dependent search effort
- Reservation Wage Adjustment Rates
- Cyclical On-the-Job Search
- Risk Aversion: For now this is randomised to ensure
variation in vacancy targeting by similar workers. This is not yet
supported by data.
Data we have decided to keep:
Eeckhout et al. 2019 Unemployment Cycles: We derive the sensitivity of employed job seekers to the business cycle from the employment-to-employment transitions data as used in Eeckhout et al. Due to unreliable component parts of the Eeckhout analysis, we decided to abandon using their estimated parameters (search intensity for employed workers).
Additional analyses that we have decided to exclude as data inputs due to lack of relevance or poor data quality are in the “Discarded Analyses” tab.
1.2018/2022 Bureau of Labor Statistics Supplement to the Current Population Survey which asks detailed questions about job search, application effort, and unemployment duration to those who did not opt in to unemployment insurance/compensation. 2. Survey on Consumer Expectations: Which is a “nationallly representative” survey with a Job Search Supplement conducted from 2014-2021.
I provide some preliminary detail on each of these options below including sample size.
This 2020 “Beyond the Numbers” issue distills insights from a 2018 Supplement to the Current Population Survey. The below plots show the highlights relevant to our decision-making on the job search process. In nearly all cases, the results are “binned” into intervals (ie. number of people sending 81 or more applications or unemployment duration of between 5 and 14 weeks) which means that any line plots (or linear interpretation of the bar graph) should be done carefully. Preliminary results using the raw data are found in the next section.
Figure 1: Shows the proportion of all individuals sending x amount of applications receiving y amount of interviews. The plot indicates a “consistent” return to sending more applications, although as demonstrated in Figure 3, the number of interviews received does not necessarily equate to receiving a job offer.
Figure 2: Demonstrates the number of applications sent (red), interviews received (green), average interview:applicaiton ratio (blue), and probability of receiving a job offer (purple) by individuals in each category of unemployment duration. There is some indication (although, again, interpretation is difficult without the raw data) that both effort and success seems to increase and then decline with time spent in unemployment, apart from success as measured by receiving a job offer which seems to consistently decline with time spent in unemployment.
Figure 3: Percentage of jobseekers receiving an offer seems to increase as a function of the number of applications sent, until a certain point.
## Processing URL: https://www.bls.gov/opub/btn/volume-9/how-do-jobseekers-search-for-jobs.htm#_edn2
It turns out that the 2018 supplement was also run in 2022, giving us two sets of years to compare (including pre- and post-Covid). The below looks at the raw data that underlies the plotting immediately above, plus the additional data from 2022. Below find a preliminary scatter plot of applications sent versus unemployment duration. Each individual is asked how many applications they sent in the last two months (two-month periods are indicated by the grey gridlines, for reference). This does NOT include data in on the job search.
Data Source: Unemployment Insurance Nonfilers Supplement conducted in 2018 (n = 3,268) & 2022 (n = 1,901) where individuals who are unemployed but have not filed for unemployment insurance are asked the following:
Below, I display the results of an exploration of the probability of
reporting a specific number of applications sent (in the bins as in the
survey question above) using various specifications of an ordinal
logistic regression. I test specifications varying three different model
parameters: 1. link function
2. linear vs. quadratic unemploymentduration,
3. with and without demographic control variables (education, gender,
age, family income - race excluded because of lack of statistical
significance though this can be revisited.)
We estimate an ordinal logistic regression model for reported applications sent \(Y_i in {0, 1, 2, 3, 4}\) testing four different link functions: the complementary log-log (cloglog), logistic, log-log, and probit link functions. Let \(X_i^\top \beta\) denote the predictor variable. The cumulative probability of observing response category \(j\) or below, \(\Pr(Y_i \leq j \mid X_i)\), is modeled as follows for each link function:
\[\begin{align*} \text{Complementary log-log (cloglog):} \quad & \Pr(Y_i \leq j \mid X_i) = 1 - \exp\left( -\exp\left( \tau_j - X_i^\top \beta \right) \right) \\ \text{Logistic (logit):} \quad & \Pr(Y_i \leq j \mid X_i) = \frac{1}{1 + \exp\left( -(\tau_j - X_i^\top \beta) \right)} \\ \text{Loglog:} \quad & \Pr(Y_i \leq j \mid X_i) = \exp\left( -\exp\left( -(\tau_j - X_i^\top \beta) \right) \right) \\ \text{Probit:} \quad & \Pr(Y_i \leq j \mid X_i) = \Phi(\tau_j - X_i^\top \beta) \end{align*}\]
Here, \(\Phi(\cdot)\) denotes the cumulative distribution function of the standard normal distribution. The estimated coefficients \(\beta\) are interpreted conditional on the choice of link function where \(X_i\) is either:
\(X_i = \left( \text{Unemp.Dur.}_i \right)\)
\(X_i = \left( \text{Unemp.Dur.}_i^2 \right)\)
\(X_i = \left( \text{Unemp.Dur.}_i, \text{Unemp.Dur.}_i^2 \right)\)
with and without control variables (education, gender, age, family income).
Assumptions about the probability distribution of the errors
associated with each link function:
- Logit: good when the response behavior is symmetric around
the middle category.
- Probit: When you’re assuming a normal latent error
distribution or want closer fit to Gaussian processes.
- Complementary log-log: When the likelihood of being in a
higher category increases sharply but asymmetrically, or you expect
hazard-like dynamics.
- Log-log: When early categories are of more importance and
need sharper separation.
Preliminary hypothesis: Best fit will be with a complementary log-log as we care more about distinguishing between lower-level bins and there are few observations in the highest-level bins.
Using an AIC information criterion to compare the fit across all
models, the following results are clear:
1. Models with control variables consistently perform better than those
without.
2. Looking at the plots above, the relationship between unemployment
duration and the predicted probability of reporting each application
effort bin is very consistent except in the case of the log-log link
function (blue in the panels above). In the plot below comparing the AIC
the log-log link function (represented by the square symbol below) is
consistently worse than all other link functions. This indicates
consistency in the results reported above. Intuitively, the log-log link
function is likely to be an unreasonable fit for the latent variable as
we care more about shifts in the lower-level categories than
higher-level categories.
3. A complementary log-log specification for the latent variable is most
suitable. This follows logically from the fact that the probability of
being in the highest-level categories is relatively low.
4. Finally, a specification with a linear and quadratic estimator is
consistently better than either the specification with simply a linear
OR quadratic unemployment duration estimator indicating that the
probability distributions represented in the final panel above are
likely to be the best fit.
Result: For each additional quarter of unemployment, an individual’s odds of dropping to a lower-level application category decreases by ~.1%. This is statistically significant across all specifications at the 0.1% level.
Mukoyama: Job Search Over the Business Cycle
As part of the Current Population Survey, the US Census Bureau conducts an annual Displaced Worker Supplement in which workers who have lost their job in the last three years are asked additional questions about their unemployment experiences and (if re-employed) their re-employment conditions.
From link above: “The universe for the Displaced Workers Supplement is civilians 20 or older. Respondents are further categorized as a”displaced worker” if they meet additional characteristics (see DWSTAT). After 1998, displaced workers are those who lost or left a job due to layoffs or shutdowns within the past 3 years…were not self-employed, and did not expect to be recalled to work within the next six months.
The data used below is from annual survey responses between 2000-2025. I use the supplement sample weights in all results below. I note where I have clipped the sample for outliers (wage ratio between [0.25, 2] and unemployment duration less than 96 weeks (~24 months).
Below I:
Overall result (at the moment): Individuals accept a ~1-percentage point change in the wage ratio per additional month of unemployment. Variations using model reweighting, different samples, combinations of control variables, reported hourly and weekly wage ratios do not seem to affect the result. However, the data seems to follow a non-linear relationship (we see little satisficing until around ~12 months of unemployment) after which the wage ratio begins to decrease. Individuals seem to accept a below-1 relative wage ratio (current wage:wage at lost job) following a year of unemployment. If we fit this model with a quadratic fit this could inform our reservation wage adjustment parameter in the model.
Important Considerations/Limitations:
Feel free to ignore this code chunk immediately below. I include it for your info on binning and outlier trimming.
# From the original dataset, I include only those that reported having lost a FT job in the last three years
df <- readRDS(here("data/behav_params/cps_displaced_worker_supplement/cps_disp_filtered.RDS")) %>%
select(hwtfinl, cpsid, wtfinl, age, sex, race, marst, educ, # age, sex, race, marital status, educational attainment
dwsuppwt, # Survey weight
dwyears, # Years worked at lost job
dwben, # Received unemployment benefits
dwexben, # Exhausted unemployment benefits
dwlastwrk, # Time since worked at last job
dwweekc, # Weekly earnings at current job
dwweekl, # Weekly earnings at lost job
dwwagel, # Hourly earnings at lost job
dwwagec, # Hourly wage at current job
dwhrswkc, # Hours worked each week at current job
dwresp, # Eligibility and interview status for Displaced Worker Supplement
# Interestingly the unemployment duration is not directly linked to CURRENT job and we cannot see the wage of the start of the next job...thought this feels problematic, it does indicate more accurately the ultimate "recovered" wage...will need to declare as a limitation but also not completely indefensible
dwwksun) %>% # Number of weeks not working between between end of lost or left job and start of next job
# I remove anyone who is Not in Universe (99) and declaring greater than 160 weeks unemployed between jobs
filter(dwhrswkc != 99 & dwwksun <= 160) %>%
# Replacing NIU values with NA values
mutate(dwwagel = ifelse(round(dwwagel) == 100, NA, dwwagel),
dwwagec = ifelse(round(dwwagec) == 100, NA, dwwagec),
dwweekl = ifelse(round(dwweekl) == 10000, NA, dwweekl),
dwweekc = ifelse(round(dwweekc) == 10000, NA, dwweekc),
# dwwage_rec_l = ifelse(is.na(dwagel) & !is.na(dweekl) ~ dwweekl),
# dwweekc = ifelse(round(dwweekc) == 10000, NA, dwweekc),
# Binning educational categories
educ_cat = case_when(educ %in% c(1) ~ NA, # (NIU)
educ > 1 & educ <= 71 ~ "Less than HS", # Includes "None" - Grade 12 no diploma (8 subcategories (grade 1-11 etc))
educ %in% c(73, 81) ~ "HS Diploma", # Includes "High school Diploma or equivalent" and "some college, but no degree"
educ %in% c(91, 92) ~ "Associate's", # Include "[Associate's degree, occupational/vocational program]" and "Associate's [Associate's degree, academic program]"
educ %in% c(111) ~ "Bachelor's", # Bachelor's degree
educ > 111 ~ "Postgraduate Degree" # Includes Master's, Professional School, and Doctorate degree
),
# Marital status to binary indicator
marst = case_when(marst == 1 ~ 1, # Married with a present spouse
# Might consider dividing this differently
TRUE ~ 0), # Married with absent spouse, separated, divorced, widowed, never married/single
# gender to 0,1 values
female = sex == 2,
# race to higher-level categories w binary values
white = race == 100,
black = race == 200,
mixed = race %in% c(801, 802, 803, 804, 805, 806, 810, 812, 813, 820, 830),
aapi = race %in% c(650, 651, 652, 808, 809),
native = race == 300
# age is a continuous variable which seems fine for now...binning likely unnecessary
) %>%
# Ratio of hourly wage of current job to lost job
mutate(ratio_wage = dwwagec/dwwagel,
# Ratio of weekly wage of current job to lost job
ratio_weekly = dwweekc/dwweekl,
# Reconciling missing reporting between weekly and hourly wage. Take either the min, max or mean value.
ratio_reconciled_min = case_when(is.na(ratio_wage) ~ ratio_weekly,
is.na(ratio_weekly) ~ ratio_wage,
TRUE ~ pmin(ratio_weekly, ratio_wage)),
ratio_reconciled_max = case_when(is.na(ratio_wage) ~ ratio_weekly,
is.na(ratio_weekly) ~ ratio_wage,
TRUE ~ pmax(ratio_weekly, ratio_wage)),
ratio_reconciled_mean = case_when(is.na(ratio_wage) ~ ratio_weekly,
is.na(ratio_weekly) ~ ratio_wage,
TRUE ~ rowMeans(across(c(ratio_wage, ratio_weekly)), na.rm = TRUE)),
# Create monthly unemployment duration for continuous
dwmosun = floor(dwwksun/4),
# Unemployment duration (reported as time between lost job and start of next job)
# I bin in...
# monthly intervals (4 weeks) from 1-6 months
# quarterly intervals (12 weeks) from 7 mos-1 year
# half-year interval from 1-2.5 years
# single bin for anyone about 120 weeks
dwwksun_bin = case_when(
# Monthly intervals (4 weeks) from 1-6 months
dwwksun <= 4 ~ 1, #"Less than 4 weeks",
dwwksun > 4 & dwwksun <= 8 ~ 2,
dwwksun > 8 & dwwksun <= 12 ~ 3,
dwwksun > 12 & dwwksun <= 16 ~ 4,
dwwksun > 16 & dwwksun <= 20 ~ 5,
dwwksun > 20 & dwwksun <= 24 ~ 6,
# Quarterly Intervals (12 weeks) from 6+ mos - 1 year
dwwksun > 24 & dwwksun <= 36 ~ 7,
dwwksun > 36 & dwwksun <= 48 ~ 8,
# Half-year Intervals (24 weeks) from 1-2.5 years
dwwksun > 48 & dwwksun <= 72 ~ 9,
dwwksun > 72 & dwwksun <= 96 ~ 10,
dwwksun > 96 & dwwksun <= 120 ~ 11,
# Anyone above - recall this is capped at 160 weeks as per filter above
dwwksun > 120 ~ 12),
# Bin labels
dwwksun_bin_labs = case_when(dwwksun_bin == 1 ~ "<= 1 mo.", #"Less than 4 weeks",
dwwksun_bin == 2 ~ "1-2 mos.",
dwwksun_bin == 3 ~ "2-3 mos.",
dwwksun_bin == 4 ~ "3-4 mos.",
dwwksun_bin == 5 ~ "4-5 mos.",
dwwksun_bin == 6 ~ "5-6 mos.",
# Quarterly Intervals (12 weeks) from 6+ mos - 1 year
dwwksun_bin == 7 ~ "6-9 mos.",
dwwksun_bin == 8 ~ "9-12 mos.",
# Half-year Intervals (24 weeks) from 1-2.5 years
dwwksun_bin == 9 ~ "12-18 mos.",
dwwksun_bin == 10 ~ "18-24 mos.",
dwwksun_bin == 11 ~ "24-30 mos.",
# Anyone above - recall this is capped at 160 weeks as per filter above
dwwksun_bin == 12 ~ "30+ mos."),
log_ratio_wage = log(ratio_wage),
log_ratio_weekly = log(ratio_weekly),
# I clip the sample to an accepted wage ratio between [0.5, 2] and less than 96 weeks of unemployment
clipped_sample_hwage = ratio_wage >= 0.5 & ratio_wage <= 2 & dwwksun_bin < 11,
clipped_sample_wwage = ratio_weekly >= 0.5 & ratio_weekly <= 2 & dwwksun_bin < 11,
clipped_sample_rec_min = ratio_reconciled_min >= 0.5 & ratio_reconciled_min <= 2 & dwwksun_bin < 11,
clipped_sample_rec_max = ratio_reconciled_max >= 0.5 & ratio_reconciled_max <= 2 & dwwksun_bin < 11,
clipped_sample_rec_mean = ratio_reconciled_mean >= 0.5 & ratio_reconciled_mean <= 2 & dwwksun_bin < 11)
All descriptives below us the us the Displaced Worker Sample Weights.
Histogram: sample is skewed (see reweighting alternatives at end of document).
Box plots: Looking at the reported wage ratios in weekly and hourly values, the mean is fixed near 1 until >12 mos of unemployment in hourly wage reporting. In weekly wage reporting, the “satisficing” seems to start earlier in unemployment duration (sample size is larger for weekly reporting - might be worth focusing on those wages).
Scatter plot: I fit a linear and spline fit to the scatted plot of the wage ratio to unemployment duration before using the regression. Indicates decline in the wage ratio with unemployment duration that has a potentially non-linear fit.
Next, (ignoring for now the non-uniformity of the sample ie. that there are less observations present for higher unemployment durations) I run the following regression (with various modifications to sample and control variables). \(W_{i} = \alpha_{i} + \beta_{1} d_{i} + \beta_{2}UI_{i} + \beta_{3}X_{i} + \epsilon_{i}\)
where \(W_{i}\): Ratio of accepted wage to wage at lost job (hourly values).
\(d_{i}\): Unemployment duration (continuous or binned).
\(UI_{i}\): Control variable for having used or exhausted unemployment benefits.
\(X_{i}\): Vector of control variables (sex, age, race (white, black, mixed), marital status (married or not), whether individual used UI benefits, whether individual exhausted UI benefits, education level, and previous wage level).
There are 48 models present with all combinations of the following:
Continuous vs. Discrete Treatment Variable (2 alternatives): Continuous (monthly) versus binned unemployment duration.
w. UI vs w. Exhausted UI (3 alternatives): The data includes a variable for whether individuals USE and/or EXHAUST unemployment benefits. I run the regressions without these UI controls, with control for having used UI, with control for having exhausted UI.
w. Controls (2 alternatives): With or without additional demographic controls (sex, age, race, married, education)
w. Wage Level (2 alternatives): With or without wage level of lost job to control for income. The level of the previous wage likely affects the wage ratio.
Outlier clipped sample (2 alternatives): (As described in the intro section) Remove outliers where the wage ratio is within [0.25, 2.5] and reported unemploymetn duration is below 96 weeks (~ 2 years).
I include the full set of coefficients (again, apologies for verbose output) in case you find the coefficients on the controls interesting (I think the coefficient on age and holding a Bachelor’s degree particularly interesting). But I highlight in blue our main interest in \(\beta_{1}\).
Across all models in the tabs below we see a consistently negative coefficient on unemployment duration (~0.7-1 percentage point increase in the wage ratio for each additional month spent in unemployment). If we look more closely at the performance of our model with continuous unemployment duration, UI use (not exhaustion), all controls, wage levels, and outlier correction we see that the model performs fairly well across various diagnostic tests.
## [1] "Continuous U Duration. w. UI Control w. demographic controls (clipped sample)"
Continuous UE duration treatment is reported in monthly values. A one-unit increase in the treatment variable = 1 additional month of unemployment.
| Cont. | Cont. (clipped) | Cont. w. UI | Cont. w. UI (clipped) | Cont. w. exhausted UI | Cont. w. exhausted UI (clipped) | Cont. w. controls | Cont. w. controls (clipped) | Cont. w. UI w. controls | Cont. w. UI w. controls (clipped) | Cont. w. exhausted UI w. controls | Cont. w. exhausted UI w. controls (clipped) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 1.053*** | 1.045*** | 1.053*** | 1.045*** | 1.006*** | 1.006*** | 1.211*** | 1.154*** | 1.211*** | 1.154*** | 1.156*** | 1.108*** |
| (0.006) | (0.004) | (0.006) | (0.004) | (0.010) | (0.007) | (0.032) | (0.022) | (0.032) | (0.022) | (0.033) | (0.023) | |
| Unemployment Duration (Months) | -0.007*** | -0.006*** | -0.007*** | -0.006*** | -0.005*** | -0.004*** | -0.006*** | -0.006*** | -0.006*** | -0.006*** | -0.004*** | -0.004*** |
| (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | |
| Received Unemployment Compensation | -0.000 | 0.000 | 0.000 | 0.000 | ||||||||
| (0.001) | (0.001) | (0.001) | (0.001) | |||||||||
| Exhausted Unemployment Compensation | 0.001*** | 0.001*** | 0.001*** | 0.000*** | ||||||||
| (0.000) | (0.000) | (0.000) | (0.000) | |||||||||
| Female | 0.003 | -0.003 | 0.003 | -0.003 | 0.003 | -0.003 | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Age | -0.003*** | -0.002*** | -0.003*** | -0.002*** | -0.003*** | -0.002*** | ||||||
| (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | |||||||
| White | -0.035 | -0.052** | -0.035 | -0.052** | -0.033 | -0.051** | ||||||
| (0.023) | (0.016) | (0.023) | (0.016) | (0.023) | (0.016) | |||||||
| Black | -0.048+ | -0.057** | -0.048+ | -0.057** | -0.045+ | -0.055** | ||||||
| (0.026) | (0.018) | (0.026) | (0.018) | (0.026) | (0.018) | |||||||
| Mixed | 0.014 | -0.070** | 0.014 | -0.070* | 0.017 | -0.068* | ||||||
| (0.040) | (0.027) | (0.040) | (0.027) | (0.040) | (0.027) | |||||||
| Married | 0.005 | 0.011 | 0.005 | 0.011 | 0.005 | 0.012+ | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Bachelor's Degree | 0.048* | 0.075*** | 0.048* | 0.075*** | 0.047* | 0.075*** | ||||||
| (0.022) | (0.015) | (0.022) | (0.015) | (0.022) | (0.015) | |||||||
| High School | -0.026 | 0.010 | -0.026 | 0.010 | -0.027 | 0.009 | ||||||
| (0.017) | (0.011) | (0.017) | (0.011) | (0.017) | (0.011) | |||||||
| Less than HS | -0.032 | 0.009 | -0.032 | 0.009 | -0.038+ | 0.005 | ||||||
| (0.021) | (0.014) | (0.021) | (0.014) | (0.021) | (0.014) | |||||||
| Postgraduate Degree | 0.082+ | 0.039 | 0.082+ | 0.039 | 0.085+ | 0.042 | ||||||
| (0.045) | (0.031) | (0.045) | (0.031) | (0.045) | (0.031) | |||||||
| Num.Obs. | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 |
| R2 | 0.009 | 0.012 | 0.009 | 0.012 | 0.017 | 0.022 | 0.025 | 0.032 | 0.025 | 0.032 | 0.030 | 0.040 |
| R2 Adj. | 0.009 | 0.012 | 0.009 | 0.011 | 0.016 | 0.022 | 0.022 | 0.029 | 0.022 | 0.029 | 0.028 | 0.037 |
| F | 46.344 | 23.169 | 41.487 | 11.151 | 10.220 | 12.521 | ||||||
| RMSE | 0.38 | 0.24 | 0.38 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 |
| + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 | ||||||||||||
| Cont. | Cont. (clipped) | Cont. w. UI | Cont. w. UI (clipped) | Cont. w. exhausted UI | Cont. w. exhausted UI (clipped) | Cont. w. controls | Cont. w. controls (clipped) | Cont. w. UI w. controls | Cont. w. UI w. controls (clipped) | Cont. w. exhausted UI w. controls | Cont. w. exhausted UI w. controls (clipped) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 1.185*** | 1.131*** | 1.186*** | 1.130*** | 1.145*** | 1.094*** | 1.347*** | 1.243*** | 1.347*** | 1.243*** | 1.300*** | 1.202*** |
| (0.011) | (0.008) | (0.011) | (0.008) | (0.014) | (0.010) | (0.032) | (0.022) | (0.032) | (0.022) | (0.034) | (0.023) | |
| Hourly Wage of Lost Job | -0.009*** | -0.006*** | -0.009*** | -0.006*** | -0.009*** | -0.006*** | -0.011*** | -0.007*** | -0.011*** | -0.007*** | -0.011*** | -0.007*** |
| (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | |
| Unemployment Duration (Months) | -0.007*** | -0.006*** | -0.007*** | -0.006*** | -0.005*** | -0.004*** | -0.006*** | -0.006*** | -0.006*** | -0.006*** | -0.005*** | -0.004*** |
| (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | (0.001) | |
| Received Unemployment Compensation | -0.000 | 0.000 | -0.000 | 0.000 | ||||||||
| (0.001) | (0.001) | (0.001) | (0.001) | |||||||||
| Exhausted Unemployment Compensation | 0.001*** | 0.000*** | 0.000*** | 0.000*** | ||||||||
| (0.000) | (0.000) | (0.000) | (0.000) | |||||||||
| Female | -0.028** | -0.023** | -0.028** | -0.023** | -0.028** | -0.023** | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Age | -0.002*** | -0.001*** | -0.002*** | -0.001*** | -0.001*** | -0.001*** | ||||||
| (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | |||||||
| White | -0.034 | -0.050** | -0.034 | -0.050** | -0.032 | -0.049** | ||||||
| (0.023) | (0.016) | (0.023) | (0.016) | (0.023) | (0.016) | |||||||
| Black | -0.058* | -0.061*** | -0.058* | -0.061*** | -0.055* | -0.060*** | ||||||
| (0.026) | (0.018) | (0.026) | (0.018) | (0.026) | (0.018) | |||||||
| Mixed | 0.016 | -0.067* | 0.016 | -0.067* | 0.019 | -0.065* | ||||||
| (0.039) | (0.027) | (0.039) | (0.027) | (0.039) | (0.026) | |||||||
| Married | 0.013 | 0.018* | 0.013 | 0.018* | 0.013 | 0.018* | ||||||
| (0.010) | (0.007) | (0.010) | (0.007) | (0.010) | (0.007) | |||||||
| Bachelor's Degree | 0.077*** | 0.094*** | 0.077*** | 0.094*** | 0.076*** | 0.094*** | ||||||
| (0.022) | (0.015) | (0.022) | (0.015) | (0.022) | (0.015) | |||||||
| High School | -0.051** | -0.008 | -0.051** | -0.008 | -0.051** | -0.008 | ||||||
| (0.017) | (0.011) | (0.017) | (0.011) | (0.017) | (0.011) | |||||||
| Less than HS | -0.084*** | -0.027+ | -0.084*** | -0.027+ | -0.088*** | -0.029* | ||||||
| (0.021) | (0.014) | (0.021) | (0.014) | (0.021) | (0.014) | |||||||
| Postgraduate Degree | 0.160*** | 0.093** | 0.160*** | 0.093** | 0.161*** | 0.094** | ||||||
| (0.044) | (0.030) | (0.044) | (0.030) | (0.044) | (0.030) | |||||||
| Num.Obs. | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 |
| R2 | 0.048 | 0.046 | 0.048 | 0.046 | 0.052 | 0.053 | 0.069 | 0.073 | 0.069 | 0.073 | 0.073 | 0.079 |
| R2 Adj. | 0.047 | 0.046 | 0.047 | 0.046 | 0.051 | 0.053 | 0.067 | 0.071 | 0.067 | 0.071 | 0.070 | 0.077 |
| F | 121.551 | 81.034 | 88.352 | 30.216 | 27.890 | 29.347 | ||||||
| RMSE | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.23 | 0.37 | 0.23 | 0.37 | 0.23 |
| + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 | ||||||||||||
Binned UE duration treatment is reported in bins as indicated in the box plots and code cleaning above.
| Disc. | Disc. (clipped) | Disc. w. UI | Disc. w. UI (clipped) | Disc. w. exhausted UI | Disc. w. exhausted UI (clipped) | Disc. w. controls | Disc. w. controls (clipped) | Disc. w. UI w. controls | Disc. w. UI w. controls (clipped) | Disc. w. exhausted UI w. controls | Disc. w. exhausted UI w. controls (clipped) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 1.069*** | 1.055*** | 1.069*** | 1.055*** | 1.016*** | 1.010*** | 1.223*** | 1.162*** | 1.223*** | 1.161*** | 1.165*** | 1.111*** |
| (0.008) | (0.005) | (0.008) | (0.005) | (0.012) | (0.008) | (0.032) | (0.022) | (0.032) | (0.022) | (0.034) | (0.023) | |
| Unemployment Duration (Binned) | -0.013*** | -0.009*** | -0.013*** | -0.009*** | -0.008*** | -0.005*** | -0.011*** | -0.008*** | -0.011*** | -0.008*** | -0.007*** | -0.005*** |
| (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | |
| Received Unemployment Compensation | -0.000 | 0.000 | 0.000 | 0.000 | ||||||||
| (0.001) | (0.001) | (0.001) | (0.001) | |||||||||
| Exhausted Unemployment Compensation | 0.001*** | 0.001*** | 0.001*** | 0.001*** | ||||||||
| (0.000) | (0.000) | (0.000) | (0.000) | |||||||||
| Female | 0.003 | -0.003 | 0.003 | -0.003 | 0.003 | -0.003 | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Age | -0.003*** | -0.002*** | -0.003*** | -0.002*** | -0.003*** | -0.002*** | ||||||
| (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | |||||||
| White | -0.035 | -0.052** | -0.035 | -0.052** | -0.033 | -0.050** | ||||||
| (0.023) | (0.016) | (0.023) | (0.016) | (0.023) | (0.016) | |||||||
| Black | -0.047+ | -0.056** | -0.047+ | -0.056** | -0.045+ | -0.055** | ||||||
| (0.026) | (0.018) | (0.026) | (0.018) | (0.026) | (0.018) | |||||||
| Mixed | 0.014 | -0.070** | 0.014 | -0.070* | 0.017 | -0.068* | ||||||
| (0.040) | (0.027) | (0.040) | (0.027) | (0.040) | (0.027) | |||||||
| Married | 0.004 | 0.011 | 0.004 | 0.011 | 0.005 | 0.012 | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Bachelor's Degree | 0.049* | 0.076*** | 0.049* | 0.076*** | 0.049* | 0.076*** | ||||||
| (0.022) | (0.015) | (0.022) | (0.015) | (0.022) | (0.015) | |||||||
| High School | -0.026 | 0.010 | -0.026 | 0.010 | -0.027 | 0.009 | ||||||
| (0.017) | (0.011) | (0.017) | (0.011) | (0.017) | (0.011) | |||||||
| Less than HS | -0.033 | 0.009 | -0.033 | 0.009 | -0.038+ | 0.005 | ||||||
| (0.021) | (0.014) | (0.021) | (0.014) | (0.021) | (0.014) | |||||||
| Postgraduate Degree | 0.083+ | 0.039 | 0.083+ | 0.039 | 0.086+ | 0.042 | ||||||
| (0.045) | (0.031) | (0.045) | (0.031) | (0.045) | (0.031) | |||||||
| Num.Obs. | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 |
| R2 | 0.010 | 0.011 | 0.010 | 0.011 | 0.016 | 0.021 | 0.025 | 0.031 | 0.025 | 0.031 | 0.030 | 0.039 |
| R2 Adj. | 0.009 | 0.011 | 0.009 | 0.010 | 0.016 | 0.021 | 0.022 | 0.028 | 0.022 | 0.028 | 0.027 | 0.036 |
| F | 47.638 | 23.816 | 40.199 | 11.165 | 10.232 | 12.314 | ||||||
| RMSE | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 |
| + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 | ||||||||||||
| Disc. | Disc. (clipped) | Disc. w. UI | Disc. w. UI (clipped) | Disc. w. exhausted UI | Disc. w. exhausted UI (clipped) | Disc. w. controls | Disc. w. controls (clipped) | Disc. w. UI w. controls | Disc. w. UI w. controls (clipped) | Disc. w. exhausted UI w. controls | Disc. w. exhausted UI w. controls (clipped) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Intercept | 1.198*** | 1.139*** | 1.199*** | 1.139*** | 1.154*** | 1.098*** | 1.357*** | 1.251*** | 1.357*** | 1.251*** | 1.308*** | 1.206*** |
| (0.012) | (0.008) | (0.012) | (0.008) | (0.016) | (0.011) | (0.032) | (0.022) | (0.033) | (0.022) | (0.035) | (0.024) | |
| Hourly Wage of Lost Job | -0.009*** | -0.006*** | -0.009*** | -0.006*** | -0.009*** | -0.006*** | -0.011*** | -0.007*** | -0.011*** | -0.007*** | -0.011*** | -0.007*** |
| (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | (0.001) | (0.000) | |
| Unemployment Duration (Binned) | -0.011*** | -0.009*** | -0.011*** | -0.009*** | -0.008*** | -0.005*** | -0.011*** | -0.008*** | -0.010*** | -0.008*** | -0.007*** | -0.005*** |
| (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | (0.002) | (0.001) | |
| Received Unemployment Compensation | -0.000 | 0.000 | -0.000 | -0.000 | ||||||||
| (0.001) | (0.001) | (0.001) | (0.001) | |||||||||
| Exhausted Unemployment Compensation | 0.000*** | 0.000*** | 0.000*** | 0.000*** | ||||||||
| (0.000) | (0.000) | (0.000) | (0.000) | |||||||||
| Female | -0.028** | -0.023** | -0.028** | -0.023** | -0.028** | -0.023** | ||||||
| (0.011) | (0.007) | (0.011) | (0.007) | (0.011) | (0.007) | |||||||
| Age | -0.002*** | -0.001*** | -0.002*** | -0.001*** | -0.001*** | -0.001*** | ||||||
| (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | (0.000) | |||||||
| White | -0.034 | -0.050** | -0.034 | -0.050** | -0.032 | -0.049** | ||||||
| (0.023) | (0.016) | (0.023) | (0.016) | (0.023) | (0.016) | |||||||
| Black | -0.057* | -0.061*** | -0.057* | -0.061*** | -0.054* | -0.059*** | ||||||
| (0.026) | (0.018) | (0.026) | (0.018) | (0.026) | (0.018) | |||||||
| Mixed | 0.017 | -0.067* | 0.017 | -0.067* | 0.019 | -0.065* | ||||||
| (0.039) | (0.027) | (0.039) | (0.027) | (0.039) | (0.026) | |||||||
| Married | 0.013 | 0.017* | 0.013 | 0.017* | 0.013 | 0.018* | ||||||
| (0.010) | (0.007) | (0.010) | (0.007) | (0.010) | (0.007) | |||||||
| Bachelor's Degree | 0.079*** | 0.095*** | 0.079*** | 0.095*** | 0.078*** | 0.094*** | ||||||
| (0.022) | (0.015) | (0.022) | (0.015) | (0.022) | (0.015) | |||||||
| High School | -0.051** | -0.008 | -0.051** | -0.008 | -0.050** | -0.008 | ||||||
| (0.017) | (0.011) | (0.017) | (0.011) | (0.017) | (0.011) | |||||||
| Less than HS | -0.085*** | -0.027+ | -0.085*** | -0.027+ | -0.088*** | -0.030* | ||||||
| (0.021) | (0.014) | (0.021) | (0.014) | (0.021) | (0.014) | |||||||
| Postgraduate Degree | 0.161*** | 0.093** | 0.161*** | 0.093** | 0.162*** | 0.094** | ||||||
| (0.044) | (0.030) | (0.044) | (0.030) | (0.044) | (0.030) | |||||||
| Num.Obs. | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 | 4870 | 4644 |
| R2 | 0.047 | 0.045 | 0.047 | 0.045 | 0.051 | 0.052 | 0.069 | 0.072 | 0.069 | 0.072 | 0.072 | 0.078 |
| R2 Adj. | 0.047 | 0.045 | 0.047 | 0.045 | 0.050 | 0.051 | 0.067 | 0.070 | 0.067 | 0.070 | 0.070 | 0.076 |
| F | 120.632 | 80.422 | 86.995 | 30.090 | 27.774 | 29.084 | ||||||
| RMSE | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.24 | 0.37 | 0.23 | 0.37 | 0.23 | 0.37 | 0.23 |
| + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 | ||||||||||||
Below I:
NOTE: Skip ahead to “Regression Results with Sample Reweighting for Regression Results if you don’t wish to look at the reweighting details below.
One of the challenges with this data is that the sample grows significantly smaller for higher reported of unemployment duration (see scatter plots in Descriptives section). One option is a sample reweighting (beyond the census weights) to ensure population similarity across bins (below I choose GLM propensity score matching & entropy-balancing) or a Heckman Selection. Again, I include the code below (apologies for verbose output), mainly because I am not yet 100% sure of the implementation as I have never implemented such sample correction in a cross-sectional study). Open to suggestions and corrections :)
Conclusion: With this implementation (which may very well be wrong for now!), the coefficients on unemployment duration remain stable.
Entropy balancing simply reweights observations to ensure population matching across the key dependent variable.
# Apply entropy balancing using dwsuppwt sample weights
# Reweight according to observable characteristics using "ebalance"
eb <- weightit(
formula = dwmosun ~ female + age + white + black + mixed + marst + educ_cat,
data = df,
method = "ebalance",
s.weights = df$dwsuppwt
)
# All covariates are balanced at the mean with tight threshold
bal.tab(eb, stats = c("m", "v"), thresholds = c(m = .001))
## Balance Measures
## Type Diff.Target.Adj M.Threshold
## female Binary 0.0000 Balanced, <0.001
## age Contin. -0.0000 Balanced, <0.001
## white Binary -0.0000 Balanced, <0.001
## black Binary -0.0000 Balanced, <0.001
## mixed Binary 0.0001 Balanced, <0.001
## marst Binary -0.0000 Balanced, <0.001
## educ_cat_Associate's Binary -0.0000 Balanced, <0.001
## educ_cat_Bachelor's Binary -0.0000 Balanced, <0.001
## educ_cat_HS Diploma Binary -0.0000 Balanced, <0.001
## educ_cat_Less than HS Binary -0.0000 Balanced, <0.001
## educ_cat_Postgraduate Degree Binary 0.0001 Balanced, <0.001
##
## Balance tally for target mean differences
## count
## Balanced, <0.001 11
## Not Balanced, >0.001 0
##
## Variable with the greatest target mean difference
## Variable Diff.Target.Adj M.Threshold
## mixed 0.0001 Balanced, <0.001
##
## Effective sample sizes
## Total
## Unadjusted 4747.86
## Adjusted 4634.14
# Add the new weights to the dataframe
df$eb_weight <- eb$weights
# Run weighted linear regression using entropy-balanced weights
mod_eb_reweight <- lm(
formula = ratio_wage ~ dwmosun + female + age + white + black + mixed + marst + educ_cat,
data = df,
weights = eb_weight
)
## [1] "Diagnostic Tests for Entropy-balanced Reweighted Sample"
# More conventional propensity scoring with a GLM estimator
glm <- weightit(
formula = dwmosun ~ female + age + white + black + mixed + marst + educ_cat,
data = df,
method = "glm",
s.weights = df$dwsuppwt
)
# All covariates are balanced at the mean with less tight threshold (0.001, very few variables pass with glm esimator)
bal.tab(glm, stats = c("m", "v"), thresholds = c(m = .01))
## Balance Measures
## Type Diff.Target.Adj M.Threshold
## female Binary -0.0032 Balanced, <0.01
## age Contin. -0.0057 Balanced, <0.01
## white Binary 0.0022 Balanced, <0.01
## black Binary -0.0005 Balanced, <0.01
## mixed Binary -0.0041 Balanced, <0.01
## marst Binary 0.0041 Balanced, <0.01
## educ_cat_Associate's Binary 0.0032 Balanced, <0.01
## educ_cat_Bachelor's Binary 0.0023 Balanced, <0.01
## educ_cat_HS Diploma Binary -0.0003 Balanced, <0.01
## educ_cat_Less than HS Binary -0.0042 Balanced, <0.01
## educ_cat_Postgraduate Degree Binary -0.0017 Balanced, <0.01
##
## Balance tally for target mean differences
## count
## Balanced, <0.01 11
## Not Balanced, >0.01 0
##
## Variable with the greatest target mean difference
## Variable Diff.Target.Adj M.Threshold
## age -0.0057 Balanced, <0.01
##
## Effective sample sizes
## Total
## Unadjusted 4747.86
## Adjusted 4637.07
df$glm_weight <- glm$weights
mod_glm_reweight <- lm(
formula = ratio_wage ~ dwmosun + female + age + white + black + mixed + marst + educ_cat,
data = df,
weights = glm_weight
)
## [1] "Diagnostic Tests for Propensity Score Matching (GLM) Reweighted Sample"
Another option is a Heckman Selection correction though I do not think this addresses the particular selection concern we have where there are simply less observations in longer unemployment durations.
# Create selection indicator (1 if ratio_wage is observed)
df$observe_wage <- as.numeric(!is.na(df$ratio_wage))
# Define selection and outcome equations
selection_eq <- observe_wage ~ female + age + white + black + mixed + marst + educ_cat
outcome_eq <- ratio_wage ~ dwmosun + female + age + white + black + mixed + marst + educ_cat
# Run Heckman
heckman_model <- selection(
selection = selection_eq,
outcome = outcome_eq,
data = df,
method = "2step",
weights = df$dwsuppwt # Include weights from CPS
)
| Heckman Correction | Entropy Balanced Reweight | GLM Reweight | |
|---|---|---|---|
| Intercept | 1.053*** | 1.154*** | 1.149*** |
| (0.093) | (0.034) | (0.034) | |
| Unemployment Duration (Months) | -0.006*** | -0.006*** | -0.006*** |
| (0.001) | (0.001) | (0.001) | |
| Female | 0.018 | 0.001 | 0.001 |
| (0.014) | (0.011) | (0.011) | |
| Age | -0.007*** | -0.002*** | -0.002*** |
| (0.002) | (0.000) | (0.000) | |
| White | -0.162* | -0.027 | -0.023 |
| (0.074) | (0.025) | (0.025) | |
| Black | -0.125* | -0.040 | -0.036 |
| (0.050) | (0.030) | (0.030) | |
| Mixed | -0.054 | 0.003 | 0.007 |
| (0.055) | (0.044) | (0.044) | |
| Married | 0.003 | 0.005 | 0.004 |
| (0.011) | (0.011) | (0.011) | |
| Bachelor's Degree | -0.139 | 0.047* | 0.048* |
| (0.105) | (0.023) | (0.023) | |
| High School | 0.064 | -0.021 | -0.020 |
| (0.053) | (0.017) | (0.017) | |
| Less than HS | 0.078 | -0.007 | -0.006 |
| (0.064) | (0.022) | (0.022) | |
| Postgraduate Degree | -0.401 | 0.076 | 0.080+ |
| (0.270) | (0.048) | (0.047) | |
| Inverse Mills Ratio | 0.870+ | ||
| (0.479) | |||
| Num.Obs. | 4870 | 4870 | 4870 |
| R2 | 0.893 | 0.014 | 0.015 |
| R2 Adj. | 0.893 | 0.012 | 0.013 |
| F | 6.487 | 6.798 | |
| RMSE | 0.37 | 0.37 | 0.37 |
| + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 | |||
We have information on the tenure spent at the last job which could impact the result. This could speak to the “adaptability” of individuals. Wage ratio seems to decrease (although not sure if meaningfully) with tenure at previous job.
Although the survey does provide sample weights which we use above, it’s still likely that those who are laid off might be systematically more susceptible to layoffs (lower-wage, low-skill occupation, male, etc). Below, some (very rough) graphs to indicate what the sample looks like.
Headline result: it seems the sample over-represents below-mean wage earners and women. Age looks reasonably accurate (in relation to a simple median though….have not checked spread). Have not yet checked match to educational attainment. Individuals with only a HS diploma is strong majority in sample - not sure how accurate this is (likely correlated with wage however…so this might be cause for concern and confirm a skewed sample in that sense).
If we wish to pursue this data, I could improve on the below but it will have to do for now.
## [1] 0.2000000 0.2315789 0.2631579 0.2947368 0.3263158 0.3578947 0.3894737
## [8] 0.4210526 0.4526316 0.4842105 0.5157895 0.5473684 0.5789474 0.6105263
## [15] 0.6421053 0.6736842 0.7052632 0.7368421 0.7684211 0.8000000
## [1] 0.2000000 0.2315789 0.2631579 0.2947368 0.3263158 0.3578947 0.3894737
## [8] 0.4210526 0.4526316 0.4842105 0.5157895 0.5473684 0.5789474 0.6105263
## [15] 0.6421053 0.6736842 0.7052632 0.7368421 0.7684211 0.8000000
##
## Call:
## lm(formula = as.formula(forms[which(names(forms) == form)]))
##
## Residuals:
## Min 1Q Median 3Q Max
## -0.014882 -0.006066 -0.003639 0.007309 0.026123
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) -0.17447 0.03519 -4.958 3.19e-06 ***
## x 0.23294 0.03499 6.656 1.93e-09 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.01036 on 93 degrees of freedom
## Multiple R-squared: 0.3227, Adjusted R-squared: 0.3154
## F-statistic: 44.31 on 1 and 93 DF, p-value: 1.925e-09
##
##
## Call:
## lm(formula = as.formula(forms[which(names(forms) == form)]))
##
## Residuals:
## Min 1Q Median 3Q Max
## -0.0102059 -0.0031620 -0.0001317 0.0039334 0.0079867
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) -5.268e-02 1.773e-02 -2.970 0.00379 **
## x 1.285e-01 1.731e-02 7.423 5.61e-11 ***
## trend -3.507e-04 1.918e-05 -18.285 < 2e-16 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.004839 on 92 degrees of freedom
## Multiple R-squared: 0.8538, Adjusted R-squared: 0.8507
## F-statistic: 268.7 on 2 and 92 DF, p-value: < 2.2e-16
##
##
## Call:
## lm(formula = as.formula(forms[which(names(forms) == form)]))
##
## Residuals:
## Min 1Q Median 3Q Max
## -0.0068610 -0.0016116 0.0001739 0.0018603 0.0046844
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) -0.049270 0.008149 -6.046 3.05e-08 ***
## x 0.049021 0.008104 6.049 3.02e-08 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.002399 on 93 degrees of freedom
## Multiple R-squared: 0.2824, Adjusted R-squared: 0.2747
## F-statistic: 36.59 on 1 and 93 DF, p-value: 3.018e-08
Mueller et al: Job Seekers’ Perceptions and Employment Prospects
The authors claim to disentangle the effects of duration dependence and dynamic selection by using job seekers’ elicited beliefs about job-finding. Assuming (and confirming empirically) that job-seekers have realistic initial beliefs about job-finding they isolate the heterogeneity in jobseekers from true duration dependence. Ultimately, they find that dynamic selection selection explains most of the negative duration dependence (rather than pure, true duration dependence).
Findings: Results are remarkably consistent even when including additional data from 2019-2024.
We aim to include this information in our theoretical model of the job search effort as a learning rate (ie. individuals learn about their re-employment probability with repeated failures in the job search).
##
## Descriptive Statistics (SCE)
## ===============================================================
## Variable Orig. 2013-19 2013-24 2020-24
## ---------------------------------------------------------------
## High-School Degree or Less 44.5 40.6 36.9
## Some College Education 32.4 34.9 37.6
## College Degree or More 23.1 24.6 25.6
## Age 20-34 25.4 27.2 30.0
## Age 35-49 33.5 33.6 35.3
## Age 50-65 41.1 39.2 34.8
## Female 59.3 61.2 60.8
## Black 19.1 17.9 16.4
## Hispanic 12.5 13.0 12.6
## UE transition rate 18.7 19.1 18.2
## UE transition rate: ST 25.8 26.5 24.3
## UE transition rate: LT 12.7 12.7 12.3
## # respondents 948 1,367 433
## # respondents w/ at least 2 u obs 534 780 252
## # observations 2,597 3,926 1,347
## ---------------------------------------------------------------
## [1] "Table 2—Regressions of Realized on Elicited 3-Month Job-Finding Probabilities (SCE)"
## [1] "Panel A. Contemporaneous elicitations"
##
## ========================================================================
## Dependent variable:
## ----------------------------------------------------
## T+3 UE Transitions (3-Months)
## Orig. 2013-19 2013-24 2020-24
## (1) (2) (3)
## ------------------------------------------------------------------------
## find_job_3mon 0.464*** 0.396*** 0.265***
## (0.045) (0.036) (0.067)
##
## 1 | userid
##
##
## Constant -0.104 -0.080 -0.136
## (0.169) (0.137) (0.267)
##
## ------------------------------------------------------------------------
## Observations 1,201 1,911 673
## R2 0.218 0.139 0.105
## Adjusted R2 0.207 0.132 0.083
## Residual Std. Error 0.467 (df = 1184) 0.475 (df = 1894) 0.478 (df = 656)
## ========================================================================
## Note: *p<0.1; **p<0.05; ***p<0.01
##
## ==========================================================================
## Dependent variable:
## ----------------------------------------------------
## T+3 UE Transitions (3-Months)
## Orig. 2013-19 2013-24 2020-24
## (1) (2) (3)
## --------------------------------------------------------------------------
## find_job_3mon 0.501*** 0.418*** 0.391***
## (0.061) (0.051) (0.094)
##
## findjob_3mon_longterm -0.258*** -0.170** -0.360***
## (0.088) (0.071) (0.133)
##
## longterm_unemployed -0.078 -0.127*** -0.043
## (0.051) (0.041) (0.075)
##
## 1 | userid
##
##
## Constant -0.062 -0.063 -0.402
## (0.175) (0.139) (0.266)
##
## --------------------------------------------------------------------------
## Observations 1,201 1,911 673
## R2 0.259 0.182 0.155
## Adjusted R2 0.248 0.174 0.132
## Residual Std. Error 0.455 (df = 1182) 0.464 (df = 1892) 0.465 (df = 654)
## ==========================================================================
## Note: *p<0.1; **p<0.05; ***p<0.01
## [1] "Panel B. Lagged elicitations"
##
## ======================================================================
## Dependent variable:
## --------------------------------------------------
## T+3 UE Transitions (3-Months)
## Orig. 2013-19 2013-24 2020-24
## (1) (2) (3)
## ----------------------------------------------------------------------
## tplus3_percep_3mon 0.332*** 0.241*** 0.203**
## (0.067) (0.056) (0.102)
##
## 1 | userid
##
##
## Constant 0.304 0.490** 0.451
## (0.270) (0.207) (0.394)
##
## ----------------------------------------------------------------------
## Observations 474 798 300
## R2 0.168 0.090 0.179
## Adjusted R2 0.139 0.071 0.132
## Residual Std. Error 0.398 (df = 457) 0.436 (df = 781) 0.447 (df = 283)
## ======================================================================
## Note: *p<0.1; **p<0.05; ***p<0.01
##
## ======================================================================
## Dependent variable:
## --------------------------------------------------
## T+3 UE Transitions (3-Months)
## Orig. 2013-19 2013-24 2020-24
## (1) (2) (3)
## ----------------------------------------------------------------------
## find_job_3mon 0.301*** 0.205*** -0.035
## (0.069) (0.058) (0.110)
##
## 1 | userid
##
##
## Constant 0.201 0.422** 0.361
## (0.274) (0.207) (0.400)
##
## ----------------------------------------------------------------------
## Observations 474 798 300
## R2 0.159 0.083 0.168
## Adjusted R2 0.129 0.064 0.121
## Residual Std. Error 0.400 (df = 457) 0.437 (df = 781) 0.450 (df = 283)
## ======================================================================
## Note: *p<0.1; **p<0.05; ***p<0.01
## [1] "Table 4—Linear Regressions of Elicited Job-Finding Probabilities on Duration of Unemployment"
## +--------------------------------+----------+----------+----------+----------+
## | | (1) | (2) | (3) | (4) |
## +================================+==========+==========+==========+==========+
## | Orig. 2013-19 |
## +--------------------------------+----------+----------+----------+----------+
## | Unemployment Duration (Months) | -0.0057 | -0.0050 | -0.0043 | 0.0022 |
## +--------------------------------+----------+----------+----------+----------+
## | | (0.0007) | (0.0007) | (0.0006) | (0.0049) |
## +--------------------------------+----------+----------+----------+----------+
## | Num.Obs. | 882 | 2281 | 2281 | 2281 |
## +--------------------------------+----------+----------+----------+----------+
## | R2 | 0.110 | 0.090 | 0.155 | 0.824 |
## +--------------------------------+----------+----------+----------+----------+
## | 2013-24 |
## +--------------------------------+----------+----------+----------+----------+
## | Unemployment Duration (Months) | -0.0050 | -0.0048 | -0.0042 | -0.0026 |
## +--------------------------------+----------+----------+----------+----------+
## | | (0.0006) | (0.0006) | (0.0005) | (0.0034) |
## +--------------------------------+----------+----------+----------+----------+
## | Num.Obs. | 1265 | 3423 | 3399 | 3423 |
## +--------------------------------+----------+----------+----------+----------+
## | R2 | 0.067 | 0.065 | 0.109 | 0.817 |
## +--------------------------------+----------+----------+----------+----------+
## | 2020-24 |
## +--------------------------------+----------+----------+----------+----------+
## | Unemployment Duration (Months) | -0.0011 | -0.0035 | -0.0039 | -0.0077 |
## +--------------------------------+----------+----------+----------+----------+
## | | (0.0013) | (0.0012) | (0.0013) | (0.0036) |
## +--------------------------------+----------+----------+----------+----------+
## | Num.Obs. | 395 | 1150 | 1140 | 1150 |
## +--------------------------------+----------+----------+----------+----------+
## | R2 | 0.002 | 0.019 | 0.118 | 0.838 |
## +================================+==========+==========+==========+==========+
## | Standard errors are clustered at the user or spell level as indicated. |
## +================================+==========+==========+==========+==========+
## Table: Table 4 - Panel A: Linear Regressions of Elicited Job-Finding Probabilities on Duration of Unemployment (SCE)
They provide a novel measure of job search effort exploiting the American Time Use and Current Population Surveys which can be reduced to just the intensive margin (changes in search effort by worker!). At the moment, I think this will be the most useful input for our model.
Abstract: We examine the cyclicality of search effort using time-series, cross-state, and individual variation and find that it is countercyclical. We then set up a search and matching model with endogenous search effort and show that search effort does not amplify labor market fluctuations but rather dampens them. Lastly, we examine the role of search effort in driving recent unemployment dynamics and show that the unemployment rate would have been 0.5 to 1 percentage points higher in the 2008–2014 period had search effort not increased.
Exploring the effect of unemployment duration on reservation wages, accepted wages, and expected wage offers.
Survey of Consumer Expectations Reservation Wages, Accepted Wages, and Wage Expectations (2014-2022) The data is unfortunately sparse and linking outcomes to reservation wages is difficult. However, in a cross-sectional setting we are able to deduce some weak relationships between Unemployment Duration and Absolute Reservation Wages and Wage Expectations.
source(here("data/behav_params/SCE Labour Market Survey/sce_res_wage_analysis.R"))
## [1] "Plots of RESERVATION WAGE versus latest, current wage"
## [1] "Plots of EXPECTED OFFER versus latest, current, reservation wage"
## [1] "Plots of ACCEPTED SALARY versus latest, current, reservation wage"
##
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | | Accpt:Latest | AccptWage w.c | Accpt:ResWage | AccptWage:ResWage w.c | Accpt:EffResWage | AccptWage:EffResWage w.c |
## +=============+==============+===============+===============+=======================+==================+==========================+
## | (Intercept) | 0.826*** | 1.743*** | 0.933*** | 1.199*** | 0.826*** | 1.002*** |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | | (0.108) | (0.260) | (0.045) | (0.141) | (0.051) | (0.177) |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | udur_bins | 0.050 | -0.005 | -0.048* | -0.053** | 0.008 | -0.001 |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | | (0.045) | (0.048) | (0.019) | (0.020) | (0.023) | (0.024) |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | Num.Obs. | 56 | 56 | 160 | 159 | 184 | 183 |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | R2 | 0.022 | 0.430 | 0.040 | 0.118 | 0.001 | 0.042 |
## +-------------+--------------+---------------+---------------+-----------------------+------------------+--------------------------+
## | RMSE | 0.40 | 0.35 | 0.30 | 0.30 | 0.34 | 0.34 |
## +=============+==============+===============+===============+=======================+==================+==========================+
## | + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 |
## +=============+==============+===============+===============+=======================+==================+==========================+
## Table: Accepted Wages and Unemployment Duration
##
## +-------------+------------+-------------+------------------+----------------------+
## | | ResWage | ResWage w.c | ResWage/LastWage | ResWage/LastWage w.c |
## +=============+============+=============+==================+======================+
## | (Intercept) | 10.173*** | 9.945*** | 0.825*** | 0.750*** |
## +-------------+------------+-------------+------------------+----------------------+
## | | (0.044) | (0.071) | (0.022) | (0.040) |
## +-------------+------------+-------------+------------------+----------------------+
## | udur_bins | 0.107*** | 0.083*** | 0.027*** | 0.023*** |
## +-------------+------------+-------------+------------------+----------------------+
## | | (0.012) | (0.011) | (0.006) | (0.006) |
## +-------------+------------+-------------+------------------+----------------------+
## | female | | -0.275*** | | 0.009 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.022) | | (0.012) |
## +-------------+------------+-------------+------------------+----------------------+
## | age | | 0.005*** | | 0.001* |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.001) | | (0.000) |
## +-------------+------------+-------------+------------------+----------------------+
## | hhinc_2 | | 0.230*** | | -0.008 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.026) | | (0.014) |
## +-------------+------------+-------------+------------------+----------------------+
## | hhinc_3 | | 0.427*** | | -0.017 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.030) | | (0.017) |
## +-------------+------------+-------------+------------------+----------------------+
## | hhinc_4 | | 0.759*** | | -0.008 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.033) | | (0.019) |
## +-------------+------------+-------------+------------------+----------------------+
## | education_2 | | -0.247*** | | 0.050+ |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.045) | | (0.026) |
## +-------------+------------+-------------+------------------+----------------------+
## | education_3 | | -0.122** | | 0.007 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.047) | | (0.027) |
## +-------------+------------+-------------+------------------+----------------------+
## | education_4 | | -0.046 | | 0.052+ |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.051) | | (0.029) |
## +-------------+------------+-------------+------------------+----------------------+
## | education_5 | | 0.027 | | 0.008 |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.049) | | (0.028) |
## +-------------+------------+-------------+------------------+----------------------+
## | education_6 | | 0.111* | | 0.054+ |
## +-------------+------------+-------------+------------------+----------------------+
## | | | (0.054) | | (0.031) |
## +-------------+------------+-------------+------------------+----------------------+
## | Num.Obs. | 7937 | 7824 | 6294 | 6224 |
## +-------------+------------+-------------+------------------+----------------------+
## | R2 | 0.010 | 0.169 | 0.003 | 0.007 |
## +-------------+------------+-------------+------------------+----------------------+
## | R2 Adj. | 0.010 | 0.168 | 0.003 | 0.005 |
## +-------------+------------+-------------+------------------+----------------------+
## | AIC | 191435.4 | 187281.4 | 9054.4 | 8961.7 |
## +-------------+------------+-------------+------------------+----------------------+
## | BIC | 191456.4 | 187372.0 | 9074.6 | 9049.3 |
## +-------------+------------+-------------+------------------+----------------------+
## | Log.Lik. | -11923.451 | -11075.843 | -4524.195 | -4467.857 |
## +-------------+------------+-------------+------------------+----------------------+
## | RMSE | 0.98 | 0.90 | 0.44 | 0.44 |
## +=============+============+=============+==================+======================+
## | + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 |
## +=============+============+=============+==================+======================+
## Table: Reservation Wages and Unemployment Duration
##
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | AccptWage | AccptWage w.c | AccptWage/ResWage | AccptWage/ResWage w.c |
## +=============+===========+===============+===================+=======================+
## | (Intercept) | 10.568*** | 11.705*** | 0.924*** | 1.303*** |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | (0.106) | (0.255) | (0.048) | (0.132) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | udur_bins | -0.006 | -0.037 | -0.031+ | -0.036+ |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | (0.040) | (0.037) | (0.018) | (0.018) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | female | | -0.164 | | -0.073 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.102) | | (0.050) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | age | | -0.008* | | -0.005** |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.004) | | (0.002) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | hhinc_2 | | 0.260+ | | 0.043 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.139) | | (0.067) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | hhinc_3 | | 0.272+ | | 0.042 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.138) | | (0.069) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | hhinc_4 | | 0.377* | | -0.052 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.150) | | (0.075) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | education_2 | | -0.996*** | | -0.043 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.224) | | (0.122) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | education_3 | | -0.940*** | | -0.128 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.223) | | (0.122) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | education_4 | | -1.036*** | | -0.176 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.226) | | (0.123) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | education_5 | | -0.827*** | | -0.141 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.224) | | (0.124) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | education_6 | | -0.551* | | -0.095 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | | | (0.228) | | (0.127) |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | Num.Obs. | 127 | 126 | 164 | 163 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | R2 | 0.000 | 0.299 | 0.017 | 0.133 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | R2 Adj. | -0.008 | 0.232 | 0.011 | 0.070 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | AIC | 2933.2 | 2884.9 | 110.6 | 109.9 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | BIC | 2941.7 | 2921.7 | 119.9 | 150.1 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | Log.Lik. | -123.204 | -99.911 | -52.283 | -41.957 |
## +-------------+-----------+---------------+-------------------+-----------------------+
## | RMSE | 0.58 | 0.53 | 0.32 | 0.32 |
## +=============+===========+===============+===================+=======================+
## | + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 |
## +=============+===========+===============+===================+=======================+
## Table: Accepted Wages and Unemployment Duration
##
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | ExpWage/ResWage | ExpWage/ResWage w.c | ExpWage/LastWage | ExpWage/LastWage w.c |
## +=============+=================+=====================+==================+======================+
## | (Intercept) | 1.057*** | 1.226*** | 1.087*** | 1.257*** |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | (0.020) | (0.040) | (0.029) | (0.059) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | udur_bins | -0.022*** | -0.009 | -0.024** | -0.008 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | (0.006) | (0.006) | (0.008) | (0.009) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | female | | -0.022+ | | 0.064*** |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.013) | | (0.019) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | age | | -0.003*** | | -0.004*** |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.000) | | (0.001) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | hhinc_2 | | 0.004 | | -0.038 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.016) | | (0.023) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | hhinc_3 | | 0.004 | | -0.001 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.018) | | (0.026) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | hhinc_4 | | 0.000 | | -0.005 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.019) | | (0.027) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | education_2 | | -0.035 | | -0.032 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.027) | | (0.040) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | education_3 | | -0.008 | | -0.056 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.028) | | (0.041) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | education_4 | | 0.004 | | -0.031 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.030) | | (0.044) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | education_5 | | 0.011 | | -0.090* |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.029) | | (0.042) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | education_6 | | 0.021 | | 0.002 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | | | (0.032) | | (0.046) |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | Num.Obs. | 3114 | 3070 | 2721 | 2690 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | R2 | 0.005 | 0.028 | 0.003 | 0.029 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | R2 Adj. | 0.005 | 0.024 | 0.003 | 0.025 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | AIC | 2803.9 | 2733.2 | 4079.4 | 3986.5 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | BIC | 2822.1 | 2811.6 | 4097.2 | 4063.1 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | Log.Lik. | -1398.968 | -1353.588 | -2036.722 | -1980.241 |
## +-------------+-----------------+---------------------+------------------+----------------------+
## | RMSE | 0.34 | 0.34 | 0.46 | 0.45 |
## +=============+=================+=====================+==================+======================+
## | + p < 0.1, * p < 0.05, ** p < 0.01, *** p < 0.001 |
## +=============+=================+=====================+==================+======================+
## Table: Expected Wages and Unemployment Duration
The Federal Reserve Bank of New York compiles the nationally representative Survey on Consumer Expectations annually in October. Since 2013, they have run a Job Search Supplement which includes questions on the time spent searching for work, and unemployment duration. The job search supplement has plenty more questions that we can look at incorporating, listed here. For now, I plot the relationship between time spent searching and time out of work. The table below also indicates the number of people unemployed in the dataset and the number of people unemployed and searching.
| Year | N Unemployed | N Unemp & Searching |
|---|---|---|
| 2014 | 383 | 70 |
| 2015 | 321 | 44 |
| 2016 | 339 | 46 |
| 2017 | 350 | 38 |
| 2018 | 354 | 41 |
| 2019 | 343 | 32 |
| 2020 | 304 | 45 |
| 2021 | 330 | 50 |
The American Time Use Survey gives no indication of time spent in unemployment. It shows how much time is spent searching but does not link to time spent in unemployment. Therefore, I prioritised the datasets above. Krueger & Mueller 2010 impute duration spent unemployed from the ATUS in the following way which could be worth considering.
“Unfortunately, the ATUS interview does not collect information on unemployment duration. Consequently, we derive unemployment duration by taking the unemployment duration reported in the last CPS interview and adding the number of weeks that elapsed between the CPS interview and the ATUS interview. Eighty-six percent of the ATUS interviews were conducted within 3 months of the last CPS interview. For those who were not unemployed at the time of the CPS interview, we impute duration of unemployment by taking half the number of weeks between the CPS and the ATUS interviews. We do not show the weekly LOWESS plot for 13 weeks or less, but simply report the average time allocated to search, as the imputed unemployment duration are quite noisy for those who become unemployed after their last CPS interview.”